Clarendon County

30 Year Climate Normals (Manning)
Max Temp. Mean Temp. Min Temp. Precip CDD HDD
1971-2000 75.2 F 63.8 F 52.4 F 49.21 Inches 2081 2482
1981-2010 76.3 F 64.2 F 52.1 F 51.07 Inches 2173 2448
1991-2020 73.8 F 63.1 F 52.5 F 55.74 Inches 1949 2595

Temperature Records (1972-2020)


Highest Maximum: 109 F, August 8, 2006; Manning
Lowest Minimum: 0 F, January 22, 1985; Manning

Precipitation Records (1899-2020)


Highest Daily Rainfall (COOP): 12.00 Inches, October 8, 2016; Manning
Highest Daily Rainfall (CoCoRaHS): 11.2 inches, October 4, 2015; Manning 8.2 S
Annual Average Rainfall: 48.27 Inches
Wettest Year: 1995, 70.06 inches; Manning
Driest Year: 1954, 20.73 Inches; Rimini 2 SSW
Highest Daily Snowfall: 14 Inches, February 11, 1973; Manning

Severe Weather Events- Countywide

Tornado

32 Tornadoes (1950-2020)
  • E/F0: 13
  • E/F1: 15
  • E/F2: 4
  • E/F3: 0
  • E/F4: 0
  • Period Of Record: 1950-2020
    Strongest: F2 on April 22, 1958, May 4, 1978, and August 28, 1988; EF2 on April 19, 2019
    Longest Path: 30.5 miles on May 4, 1978
    Widest Path: 440 yards on January 13, 2006
    2 tornado related fatalities
    27 tornado related injuries
    Total Damage Costs: $3.4 Million

    Thunderstorm, High, and Strong Wind Events

    199 Total Wind Events (winds exceeding 50 knots or 58 miles per hour, 1955-2020)
  • 196 Thunderstorm wind events
  • 2 High wind events
  • 1 Strong wind event
  • 0 Wind-related fatalities
    0 Wind-related injuries
    Total Damage Costs: $1.399 Million

    Hail (>1.0 inch)


    49 Hail events (1955-2020)

    Lightning


    3 Lightning events (1993-2020)
    2 Lightning related fatalities
    0 Lightning related injuries
    Total Damage Costs: $60,000

    Flood

    17 Total Flood Events (1993-2020)
  • 0 Flood Events
  • 0 Coastal Flood Events
  • 17 Flash Flood Events
  • 0 Flood-related fatalities
    0 Flood-related injuries
    Total Damage Costs: $17.537 Million

    Winter Weather-Related Events

    12 Total Winter Weather-Related Events
  • 5 Winter storm events
  • 5 Ice storm events
  • 1 Heavy snow event
  • 0 Frost/freeze events
  • 1 Winter weather event
  • 0 Cold/wind chill events
  • 0 Winter weather-related fatalities
    0 Winter weather-related injuries
    Total Damage Costs: $12,000